package com.lyy.bigevent.interceptors;

import com.lyy.bigevent.utils.JwtUtil;
import com.lyy.bigevent.utils.ThreadLocalUtil;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.Map;

@Component
public class LoginInterceptor implements HandlerInterceptor {
//    @Autowired
//    private StringRedisTemplate stringRedisTemplate ;
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //JWT令牌验证
        String token =request.getHeader("Authorization");
        //验证token
        try {
            //从Redis中获取相同的token
//            ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
//            String redisToken = operations.get(token);
//            if (redisToken == null) {
//                throw new RuntimeException("令牌验证失败");
//            }

            Map<String, Object> claims = JwtUtil.parseToken(token);
            //把业务数据存储到ThreadLocal中
            ThreadLocalUtil.set(claims);
            //放行
            return true;
        } catch (Exception e) {
            //设置响应状态码
            response.setStatus(401);
            //拦截
            return false;
        }
    }

    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        //请求处理完成后，清空ThreadLocal中的数据
        ThreadLocalUtil.remove();
    }
}
